Modeling the Effect of Transmission Errors on TCP Controlled Transfers Over Infrastructure 802.11 Wireless LANs

There have been several studies on the performance of TCP controlled transfers over an infrastructure IEEE 802.11 WLAN, assuming perfect channel conditions. In this paper, the authors develop an analytical model for the throughput of TCP controlled le transfers over the IEEE 802.11 DCF with different packet error probabilities for the stations, accounting for the effect of packet drops on the TCP window. Their analysis proceeds by combining two models: one is an extension of the usual TCP-over-DCF model for an infrastructure WLAN, where the throughput of a station depends on the probability that the head-of-the-line packet at the Access Point belongs to that station; the second is a model for the TCP window process for connections with different drop probabilities.

Provided by: Association for Computing Machinery Topic: Mobility Date Added: Nov 2011 Format: PDF

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